GB1494078A - Inductors and methods of constructing them - Google Patents
Inductors and methods of constructing themInfo
- Publication number
- GB1494078A GB1494078A GB5336473A GB5336473A GB1494078A GB 1494078 A GB1494078 A GB 1494078A GB 5336473 A GB5336473 A GB 5336473A GB 5336473 A GB5336473 A GB 5336473A GB 1494078 A GB1494078 A GB 1494078A
- Authority
- GB
- United Kingdom
- Prior art keywords
- powder
- coil
- coated
- resin
- nickel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000000843 powder Substances 0.000 abstract 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 3
- 229920005989 resin Polymers 0.000 abstract 3
- 239000011347 resin Substances 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000003822 epoxy resin Substances 0.000 abstract 2
- 229920000647 polyepoxide Polymers 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000004070 electrodeposition Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 229920001187 thermosetting polymer Polymers 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/20—Resin
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
1494078 Inductors EMI Ltd 6 Jan 1975 [16 Nov 1973] 53364/73 Heading HIT An inductor comprises a coil encapsulated in resin coated ferromagnetic particles adjacent particles being caused to adhere to one another by their coatings. In an example 50/50 nickeliron alloy powder is coated with 0À5% by weight of a thermosetting epoxide resin binder by dissolving the resin in a mixture of 80 parts of acetone to 20 of methanol, adding the powder and evaporating off the solvent whilst stirring the slurry till dry. The coil and coated powder are placed in a container and subjected to hydraulic pressure for several seconds causing the coated powder particles to adhere to one another. The encapsulated coil is then clamped lightly and the resin cured. The inductor is then vacuum impregnated with a low viscosity epoxide resin and cured again. Preferably the length of the coil is not greater than twice its diameter. Alternatives to the 50/50 nickel-iron powder are: 100% nickel, a 47À5% nickel-iron alloy, atomized iron powder, powder made by embrittlement procedures, iron powders made by the carbonyl process, sponge and electrolytically produced powders, or those produced by electrodeposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5336473A GB1494078A (en) | 1973-11-16 | 1973-11-16 | Inductors and methods of constructing them |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5336473A GB1494078A (en) | 1973-11-16 | 1973-11-16 | Inductors and methods of constructing them |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1494078A true GB1494078A (en) | 1977-12-07 |
Family
ID=10467548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5336473A Expired GB1494078A (en) | 1973-11-16 | 1973-11-16 | Inductors and methods of constructing them |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1494078A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000070197A1 (en) * | 1999-05-14 | 2000-11-23 | Siemens Aktiengesellschaft | Electromechanical actuator |
| EP1486993A1 (en) * | 2003-06-12 | 2004-12-15 | Nec Tokin Corporation | Coil component and fabrication method of the same |
| EP1744329A2 (en) * | 2000-04-28 | 2007-01-17 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing a magnetic element comprising a composite magnetic body |
-
1973
- 1973-11-16 GB GB5336473A patent/GB1494078A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000070197A1 (en) * | 1999-05-14 | 2000-11-23 | Siemens Aktiengesellschaft | Electromechanical actuator |
| EP1744329A2 (en) * | 2000-04-28 | 2007-01-17 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing a magnetic element comprising a composite magnetic body |
| EP1744329A3 (en) * | 2000-04-28 | 2007-05-30 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing a magnetic element comprising a composite magnetic body |
| EP1486993A1 (en) * | 2003-06-12 | 2004-12-15 | Nec Tokin Corporation | Coil component and fabrication method of the same |
| US7427909B2 (en) | 2003-06-12 | 2008-09-23 | Nec Tokin Corporation | Coil component and fabrication method of the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |